HI here!

I'm configuring OSPF on my s6720 switch. It works, but it looks strange. I just turned OSPF on the interface, like this:

ospf 1 router-id 10.8.0.100

 silent-interface all

 undo silent-interface Vlanif4010

 area 0.0.0.0

  network 10.8.3.0 0.0.0.255

interface Vlanif4010

 ip address 10.8.3.18 255.255.255.0

 ospf cost 100

 ospf network-type p2mp

 ospf dr-priority 0

 mpls

 mpls ldp

As you can see, all the neigbours have addresses in 10.8.3.0/24 network. 

Then it started to discover the neighbours, and exchanged the routing info.  Finally I checked my RIB and found a lot of prefixes like this: 10.8.3.XX/32

Why the OSPF process generates /32 for directly connected interface. It isn't a Loopback interface, just usual vlan with broadcast network there. 

I tried to change network type, but it didn't change the behaviour. Probaly it could be connected with MPLS on the interface, who knows? 

Any way, could you give me a hint how i could change this behaviour? I applied a prefix list to filter these prefixes, but I don't think this is a good resolution of the problem.